JP4970879B2 - Adhesive label manufacturing apparatus and manufacturing method, and concealment type sheet manufacturing method - Google Patents

Description

  The present invention relates to a pressure-sensitive adhesive label manufacturing apparatus and method for manufacturing a pressure-sensitive adhesive label for concealing written personal information and the like, and a concealment-type sheet including an information entry section provided with an information entry field and a pressure-sensitive adhesive label. The present invention relates to a method for manufacturing a concealment type sheet for manufacturing.

In recent years, from the viewpoint of protecting personal information, adhesive labels and concealed postcards that are concealed by sticking a concealing base material on the written information have become widespread.
As the concealment type postcard, for example, Patent Document 1 has an information entry part made of a rectangular sheet and provided with an information entry field, and an adhesive label for covering and concealing at least the information entry field. There has been proposed a structure in which an adhesive layer and a release agent layer having the same width are alternately provided on the surface in contact with the information entry field of the adhesive label. Before concealing the information entry column, this concealed postcard adhesive label is folded and closed at the boundary between the adhesive layer and the release agent layer so that the information entry column is concealed. The adhesive label is opened to expose the adhesive layer.
Utility Model Registration No. 3108806

Since the concealed postcard described in Patent Document 1 includes a pressure-sensitive adhesive layer and a release agent layer, in order to produce this, the pressure-sensitive adhesive layer and the release agent layer must be formed at positions that do not overlap each other. . However, since it takes time to form the pressure-sensitive adhesive layer and the release agent layer in this way, the concealed postcard described in Patent Document 1 has not been easily obtained.
Therefore, as a pressure-sensitive adhesive for forming a pressure-sensitive adhesive layer, a releasable / re-stickable pressure-sensitive adhesive containing pressure-sensitive fine particles and / or non-sticky fine particles, a binder, a tackifier, and an aqueous solvent is used. It is conceivable to omit the layer.
In the pressure-sensitive adhesive layer formed using the re-peelable / re-stickable pressure-sensitive adhesive, a part of the pressure-sensitive fine particles and / or non-sticky fine particles protrudes from the binder and tackifier film to form irregularities on the surface. It demonstrates re-peelability and re-stickability. Therefore, when forming a pressure-sensitive adhesive layer using a re-peelable / re-adhesive pressure-sensitive adhesive, in order to make a part of the pressure-sensitive fine particles and / or non-sticky fine particles protrude from the binder and tackifier films. It is necessary to reduce the coating amount of the re-peelable / re-stickable adhesive.

By the way, in general, in order to form the pressure-sensitive adhesive layer, a method of applying or printing a re-peelable / re-stickable pressure-sensitive adhesive to form a pressure-sensitive adhesive coating film and then drying with hot air is employed. However, drying with hot air takes a long time to dry and a long manufacturing time, so that the solvent in the re-peelable / re-sticking adhesive may volatilize during the manufacturing. As a result, the concentration of the re-peelable / re-adhesive pressure-sensitive adhesive gradually increases or a film of the pressure-sensitive adhesive is formed on the coating machine or the printing machine, which may hinder coating or printing. Therefore, there is a problem that it is necessary to care for the coating machine or the printing machine at a high frequency, and the burden on the operator is large. In particular, when the adhesive containing adhesive fine particles or non-adhesive fine particles is used as the re-peeling / re-sticking pressure-sensitive adhesive, it is necessary to reduce the coating amount as described above. This is particularly problematic because the consumption rate of the adhesive is slow.
The present invention has been made in view of the above circumstances, and it is possible to reduce the amount of coating using a re-peelable / re-stickable pressure-sensitive adhesive (particularly pressure-sensitive adhesive containing pressure-sensitive fine particles and / or non-sticky fine particles). Even when forming a small pressure-sensitive adhesive coating film, a pressure-sensitive adhesive label manufacturing apparatus and manufacturing method capable of reducing the frequency of maintenance of a coating machine or a printing machine for forming a pressure-sensitive adhesive coating film, and a concealed sheet An object is to provide a manufacturing method.

[1] A pressure-sensitive adhesive coating film comprising a re-peelable / re-sticking pressure-sensitive adhesive containing pressure-sensitive fine particles and / or non-sticky fine particles, a binder, a tackifier, and an aqueous solvent on at least one surface of a substrate for pressure-sensitive adhesive labels. A coating film forming machine for forming
The pressure-sensitive adhesive coating film is heat-dried by high-frequency electromagnetic waves, and a pressure-sensitive adhesive layer in which a part of the pressure-sensitive adhesive fine particles and / or non-sticky fine particles protrudes from the binder and tackifier film to form irregularities on the surface. An apparatus for producing a pressure-sensitive adhesive label, comprising:
[2] The apparatus for producing an adhesive label according to [1] , wherein the coating film forming machine is a printing machine.
[3] Furthermore, it comprises a folder installed after the dryer,
The coating film forming machine comprises a pressure-sensitive adhesive made of a re-peelable / re-stickable pressure-sensitive adhesive in a region divided into a first concealing part and a region divided into a second concealing part on one side of the adhesive label base material. The film is formed in a pattern,
The pattern is a pattern in which the adhesive coatings of the first concealing part and the second concealing part do not overlap when the adhesive label substrate is folded back at the boundary between the first concealing part and the second concealing part. Yes,
The folding machine is configured to fold the adhesive label base material at the boundary between the first concealing part and the second concealing part, and to paste the opposing faces with the adhesive layer [1. ] Or the manufacturing apparatus of the adhesive label as described in any one of [2] .
[4] Adhesive coating film comprising a re-peelable / re-adhesive pressure-sensitive adhesive containing adhesive fine particles and / or non-adhesive fine particles, a binder, a tackifier, and an aqueous solvent on at least one surface of the adhesive label substrate. Forming a step;
The pressure-sensitive adhesive coating film is heat-dried by high-frequency electromagnetic waves, and a pressure-sensitive adhesive layer in which a part of the pressure-sensitive adhesive fine particles and / or non-sticky fine particles protrudes from the binder and tackifier film to form irregularities on the surface. A process for forming a pressure-sensitive adhesive label.
[5] The method for producing a pressure-sensitive adhesive label according to [4] , wherein a re-peelable / re-stickable pressure-sensitive adhesive is printed in the step of forming the pressure-sensitive adhesive coating film.
[6] The step of forming the pressure-sensitive adhesive coating film includes re-peeling and re-sticking into a region divided into the first concealing portion and a region divided into the second concealing portion on one side of the adhesive label substrate. Is a process of forming a pressure-sensitive adhesive coating film made of a pressure-sensitive adhesive into a pattern,
The pattern is a pattern in which the adhesive coatings of the first concealing part and the second concealing part do not overlap when the adhesive label substrate is folded back at the boundary between the first concealing part and the second concealing part. Yes,
After the step of forming the pressure-sensitive adhesive layer, the step of folding the pressure-sensitive adhesive label base material at the boundary between the first concealing portion and the second concealing portion, and sticking the opposing surfaces with the pressure-sensitive adhesive layer. A method for producing an adhesive label according to [4] or [5] .
[7] Concealment provided with an adhesive layer on a concealable sheet base material divided into an information entry part and a concealment part, and comprising an information entry part and an adhesive label for concealing at least a part of the information entry part A method for producing a concealed sheet for producing a formula sheet,
The concealing part of the concealable sheet base material is used as the base material for the adhesive label, and the adhesive label is formed by the method for producing an adhesive label according to any one of [4] to [6]. Manufacturing method of concealment type sheet.

  According to the method and apparatus for producing an adhesive label and the method for producing a concealing sheet of the present invention, coating is performed using a re-peelable / re-sticking adhesive containing adhesive fine particles and / or non-adhesive fine particles. Even when a small amount of the adhesive coating film is formed, the frequency of maintenance of the coating machine or the printing machine for forming the adhesive coating film can be reduced.

(Adhesive label manufacturing equipment)
One Embodiment of the adhesive label manufacturing apparatus of this invention is described.
In FIG. 1, the manufacturing apparatus of the adhesive label of this embodiment is shown.
The pressure-sensitive adhesive label manufacturing apparatus 10 according to this embodiment includes a feeder 11 that feeds a web-like pressure-sensitive adhesive label substrate 111a from a raw material, and a web-like pressure-sensitive adhesive label substrate 111a by pushing the crease. The presser 12 to be attached, the coating film forming machine 13 for forming the adhesive coating film 112a on one side of the web-like adhesive label substrate 111a, and the adhesive coating film 112a are dried by heating to dry the adhesive layers 112b and 112c. The web-like pressure-sensitive adhesive label substrate 111a, the web-like pressure-sensitive adhesive label substrate 111a is folded, and the opposite surfaces are bonded to each other by the pressure-sensitive adhesive layers 112b and 112c. And a first cutting machine 16 for cutting into sheets.

  The brace 12 in the pressure-sensitive adhesive label manufacturing apparatus 10 is a rotatable disk. This muscle pusher 12 creases along the length direction of the web-like adhesive label substrate 111a by pressing the peripheral surface of the disk against the web-like adhesive label substrate 111a. .

The coating film forming machine 13 is a printing machine that prints a re-peeling / re-sticking pressure-sensitive adhesive or a coating machine that applies a re-peeling / re-sticking pressure-sensitive adhesive. The re-peelable / re-adhesive pressure-sensitive adhesive used here contains non-adhesive fine particles and / or adhesive fine particles, a binder, a tackifier, and an aqueous solvent. In the re-peelable / re-stickable pressure-sensitive adhesive, the non-sticky fine particles and / or the sticky fine particles, the binder, and the tackifier are dispersed or dissolved in an aqueous solvent.
Examples of the printing machine that can be used as the coating film forming machine 13 include a flexographic printing machine, a gravure printing machine, and a screen printing machine.
Examples of the coating machine that can be used as the coating film forming machine 13 include a roll coater, a reverse roll coater, a knife coater, an air knife coater, a bar coater, a slot die coater, a lip coater, a gravure coater, and a reverse gravure coater. Can be mentioned.
Among these, a printing machine is preferable because a pattern can be easily formed.

Since the coating film forming machine 13 can further suppress the volatilization of the aqueous solvent in the re-peelable / re-adhesive pressure-sensitive adhesive, a slit-shaped hole through which the web-shaped pressure-sensitive adhesive label substrate 111a passes as shown in the illustrated example. It is preferable to store in the storage box 13b provided with 13a. For the same reason, it is preferable to humidify the periphery of the coating film forming machine 13.
It is more preferable to humidify only the inside of the storage box 13b in terms of particularly suppressing the volatilization of the aqueous solvent and preventing moisture absorption of the resulting adhesive label.

The dryer 14 heats and drys the pressure-sensitive adhesive coating film 112a with high-frequency electromagnetic waves . Here, the high frequency means an electromagnetic wave having a frequency of 30 kHz to 300 GHz.
The dryer 14 activates the molecular motion of the solvent in the pressure-sensitive adhesive coating film 112a by high-frequency electromagnetic waves and heats it directly. Since this heating does not depend on heat conduction, the pressure-sensitive adhesive coating film 112a can be dried in a short time.
Among high frequency waves, an electromagnetic wave having a frequency of 3 MHz to 300 MHz is preferable, and an electromagnetic wave having a frequency of 10 MHz to 100 MHz is more preferable because the pressure-sensitive adhesive coating film can be uniformly dried and the drying speed can be easily controlled.

  The folding machine 15 includes a guide 15a that contacts the web-shaped adhesive label base material 111a and folds it back at the crease provided by the muscle pusher 12.

  The 1st cutting machine 16 is a roll by which the cutting blade 16a was provided in the surrounding surface. The cutting blade 16a is provided so that the web-like adhesive label substrate 111a can be cut into a single sheet.

  The feeder 11 feeds the web-shaped adhesive label base material 111a from its original fabric. Thereby, processing by the muscle pusher 12, the coating film forming machine 13, the dryer 14, the folding machine 15, and the first cutting machine 16 is sequentially performed.

  In the pressure-sensitive adhesive label manufacturing apparatus 10 described above, the drying by the dryer 14 can be completed in a short time, and therefore the entire manufacturing time of the pressure-sensitive adhesive label 110 can be shortened. Therefore, it is possible to suppress an increase in the solid content concentration of the re-peeling / re-sticking pressure-sensitive adhesive and formation of a film of the re-peeling / re-sticking pressure-sensitive adhesive on the surface of the coating machine or printing machine. Therefore, even when the pressure-sensitive adhesive coating 112a is formed with a small coating amount, the frequency of maintenance of the coating film forming machine 13 can be reduced and the burden on the operator can be reduced.

(Adhesive label manufacturing method)
An embodiment of the method for producing the pressure-sensitive adhesive label of the present invention will be described by taking the production of the pressure-sensitive adhesive label 110 shown in FIG. 2 as an example. In addition, the manufacturing method of the adhesive label of this invention is not limited to manufacture of the adhesive label 110. FIG.
Here, the pressure-sensitive adhesive label 110 is respectively formed on one surface of the pressure-sensitive adhesive label base material 111 divided into the first concealing part 111b and the second concealing part 111c, and the first concealing part 111b and the second concealing part 111c. provided pressure-sensitive adhesive layer 112b, and a 112c, the second concealment portion 111c is folded back at the boundary _{B 1} between the first concealment part 111b, the first concealment part through the adhesive layer 112b, the 112c It is stuck to 111b so that peeling is possible.
The pattern of the pressure-sensitive adhesive label 110 is a striped pattern parallel to the long side of the pressure-sensitive adhesive label substrate 111 and equidistantly spaced from the second concealing portion 111c with the boundary B between the first concealing portion 111b. When folded at ₁ , the adhesive layer 112b formed on the first concealing portion 111b and the adhesive layer 112c formed on the second concealing portion 111c do not overlap each other.

  In the pressure-sensitive adhesive label manufacturing method of the present embodiment, the pressure-sensitive adhesive label manufacturing apparatus 10 described above is used. First, a web-shaped pressure-sensitive adhesive label substrate is fed by a feeder 11 from a web-shaped pressure-sensitive adhesive label substrate 111a. The material 111a is continuously fed toward the brace 12.

  Next, the circumferential surface of the pusher 12 is pressed against the web-shaped adhesive label substrate 111a, and a crease L is formed along the length direction and at the center in the width direction (see FIG. 3).

  Next, using the coating film forming machine 13, a re-peelable / re-adhesive pressure-sensitive adhesive is applied to one side of the web-shaped adhesive label substrate 111 a along the length direction and in stripes at equal intervals. Work or print. Thereby, the adhesive coating film 112a which consists of a re-peeling / re-sticking adhesive is continuously formed (refer FIG. 4).

The coating or printing of the removable and re-stuck-adhesive adhesive, the coating amount or the printing amount is preferably to 3 to 30 g / m ² by dry weight, be 5 to 20 g / m ² More preferred. If the coating amount or the printing amount is 3 g / m ² or more, the adhesive performance of the adhesive layers 112b and 112c obtained from the adhesive coating 112a is excellent, and if it is 30 g / m ² or less, the adhesive. Unevenness is easily formed on the surfaces of the layers 112b and 112c, and the removability is excellent.

Next, the pressure-sensitive adhesive coating film 112a is heated and dried by high-frequency electromagnetic waves by the dryer 14 to form the pressure-sensitive adhesive layers 112b and 112c.

Next, using the folding machine 15, the web-like adhesive label substrate 111 a is folded at the crease L, and the folded portion is adhered to the remaining portion via the adhesive layers 112 b and 112 c. Here, the folded portion becomes the second concealing portion 111c in FIG. 2, and the remaining portion becomes the first concealing portion 111b.
And the web-shaped adhesive label base material 111a is cut into a single sheet by using the first cutting machine 16, and the adhesive label 110 shown in FIG. 2 is obtained.

  Examples of the web-shaped adhesive label substrate 111a used in the manufacturing method include papers and resin films. Furthermore, examples of the paper include cast-coated paper, art paper, coated paper, and high-quality paper. Examples of the resin film include various polymer films such as polypropylene, polyethylene, polyethylene terephthalate, and polyvinyl chloride. Also, vapor-deposited paper, synthetic paper, cloth, non-woven fabric, metal foil and the like can be used. These may be used in a single layer or may be used in a stacked manner.

  Further, the web-like adhesive label substrate 111a has a high concealing property so that, when concealing personal information entered on paper or the like, the entered personal information cannot be visually recognized through the adhesive label substrate 111. It is preferable to have. In order to improve the concealing property, for example, a method of adding or applying an opacifying agent such as titanium oxide to the web-like adhesive label substrate 111a, the side where the adhesive layers 112b and 112c are not provided. A method of printing the entire surface of the printing ink or tint block printing on the surface of the film, a colored film such as silver, black or dark blue or a dark colored color on the surface on which the adhesive layers 112b and 112c are not provided A method of laminating paper can be appropriately employed.

  The present invention is suitable when the re-peelable / re-adhesive pressure-sensitive adhesive contains adhesive fine particles and / or non-adhesive fine particles, a binder, a tackifier, and an aqueous solvent.

The adhesive fine particles constituting the re-peelable / re-adhesive pressure-sensitive adhesive are not particularly limited as long as the adhesive fine particles themselves are fine particles having an adhesive property, but are made of an acrylic copolymer from the balance of physical properties. It is preferable.
Examples of the adhesive fine particles made of an acrylic copolymer include an acrylic represented by (a) a general formula CH ₂ = CHCOOR ¹ (where R ¹ represents a linear or branched alkyl group having 4 to 10 carbon atoms). 60-100% by mass of an acid ester monomer, (b) 0-10% by mass of an unsaturated monomer having a carboxy group, (c) other copolymerizable with the monomers (a) and (b) Acrylic copolymer fine particles obtained by copolymerizing 0 to 40% by mass of an unsaturated monomer.

The number average particle size of the adhesive fine particles is preferably 10 to 50 μm, and more preferably 20 to 50 μm.
If the average particle size of the adhesive fine particles is 10 μm or more, unevenness is formed on the surfaces of the pressure-sensitive adhesive layers 112b and 112c, and the removability is further improved, and if it is 50 μm or less, excellent adhesiveness can be maintained.
Here, the average particle diameter is a number average particle diameter. For example, about 100 fine particles are randomly selected from an electron micrograph of adhesive fine particles, and the average value can be obtained by measuring the particle diameter. When the particles are not true spheres, the major axis and the minor axis are obtained, and the average value may be assumed as the particle diameter of the particles.

  As the non-adhesive fine particles, for example, fine particles or fine powders such as calcium carbonate particles, aluminum silicate particles, talc particles, white carbon particles, Saran hollow spheres, and cellulose powder can be used. These non-adhesive fine particles may be used alone or in combination of two or more.

Examples of the binder include rubber-based materials based on natural rubber and synthetic rubber, and those based on synthetic resins such as acrylic-based, SBR-based, and silicone-based materials. There are emulsion type, solvent type, solventless type, etc., and any type may be used, but among them, it is an aqueous emulsion type acrylic adhesive from the viewpoint of adhesiveness, durability and price, and Tg is -30 to -10. The thing of ° C is preferable from the surface of adhesiveness. Adhesive residue can be prevented by setting Tg to −30 ° C. or higher, and flexibility of the adhesive layers 112b and 112c can be ensured by setting Tg to −10 ° C. or lower.
The amount of the binder is preferably 5 to 40 parts by mass, more preferably 5 to 35 parts by mass, and particularly preferably 5 to 30 parts by mass with respect to 100 parts by mass of the adhesive fine particles. If the amount of the binder is 40 parts by mass or less with respect to 100 parts by mass of the adhesive fine particles, the adhesiveness can be improved.

The tackifier is used to improve the initial adhesiveness of the re-peelable / re-stickable pressure-sensitive adhesive.
Examples of the tackifier include petroleum resins, natural resins, and derivatives thereof. Petroleum resins, natural resins or derivatives thereof are, for example, terpene resins such as polyterpene resins and modified terpenes; for example, petroleum resins such as aliphatic hydrocarbon resins, cyclopentadiene resins, and aromatic petroleum resins. For example, rosin resins such as rosin, rosin ester and hydrogenated rosin ester; and other examples include phenol resin, styrene resin, xylene resin and the like. Among these, petroleum resin, rosin resin, or terpene resin is preferable.

  The amount of tackifier is preferably 0.1 to 20 parts by mass, more preferably 0.5 to 10 parts by mass with respect to 100 parts by mass of the adhesive fine particles. If the amount of tackifier is 0.1 parts by mass or more with respect to 100 parts by mass of the sticky fine particles, it has excellent initial adhesiveness, and performance is hardly deteriorated even when external pressure is applied for a long period of time. On the other hand, even when the amount is 20 parts by mass or less, the performance hardly deteriorates even when the external pressure is applied for a long time.

The re-peeling / re-sticking pressure-sensitive adhesive may contain a crosslinking agent.
A conventionally well-known thing can be used as a crosslinking agent. For example, an ionic crosslinking agent (for example, zinc acetate, magnesium acetate, calcium acetate) containing glycidyl compound, isocyanate compound, oxazoline group-containing compound, compound having one or more carbodiimide groups, Mg ²⁺ , Ca ²⁺ , Zn ²⁺ , Al ^3+, etc. Etc.).
A crosslinking agent may be used individually by 1 type, and may use 2 or more types together.

The aqueous solvent contains water or water and a small amount of an organic solvent. When the aqueous solvent contains water and an organic solvent, the content of the organic solvent is 10% by mass or less based on 100% by mass of the aqueous solvent.
Examples of organic solvents other than water include alcohols (eg, methanol, ethanol, propanol, etc.), ketones (eg, acetone, methyl ethyl ketone, etc.), ethers (eg, diethyl ether, methyl cellosolve, ethyl cellosolve, etc.).

The pressure-sensitive adhesive label manufactured by the method for manufacturing a pressure-sensitive adhesive label according to this embodiment is used as a concealment label for concealing information or the like, for example.
The concealment label is used by peeling the second concealment part 111c from the first concealment part 111b and sticking it to a sheet on which personal information and the like are described by the adhesive layers 112b and 112c exposed thereby.

In the adhesive label manufacturing method described above, drying by the dryer 14 can be completed in a short time, and therefore the entire manufacturing time of the adhesive label 110 can be shortened. Therefore, it is possible to suppress an increase in the solid content concentration of the re-peeling / re-sticking pressure-sensitive adhesive and formation of a film of the re-peeling / re-sticking pressure-sensitive adhesive on the surface of the coating machine or printing machine. Therefore, even when the pressure-sensitive adhesive coating 112a is formed with a small coating amount, the frequency of maintenance of the coating film forming machine 13 can be reduced and the burden on the operator can be reduced.
Moreover, in this manufacturing method, it is not necessary to form a release agent layer in order to form the adhesive layers 112b and 112c made of the re-peelable / re-adhesive pressure-sensitive adhesive by the coating film forming machine 13 and the dryer 14. The adhesive label 110 can be easily manufactured.

(Manufacturing method of concealment type sheet)
One embodiment of the manufacturing method of the concealment type sheet of the present invention is described.
FIG. 5 shows a concealment type sheet manufacturing apparatus used in the concealment type sheet manufacturing method of the present embodiment. The concealment type sheet manufacturing apparatus 20 includes a feeder 21 that feeds the concealment type sheet base material 101 from a web-shaped concealment type sheet base material 101, and a concealment type sheet base material 101. The muscle pusher 12 that pushes and creases, the coating film forming machine 13 that forms the adhesive coating film 112a on a part of one surface of the web-shaped concealable sheet substrate 101, and the adhesive coating film 112a are heated and dried. The dryer 14 for forming the pressure-sensitive adhesive layers 112b and 112c, the second cutting machine 27 for cutting the concealable sheet substrate 101 into a predetermined shape, and the pressure-sensitive adhesive layer 112b of the concealable sheet substrate 101. The folding machine 15 which folds the formed part and sticks the opposing surfaces together, and the first cutting machine 26 which cuts the web-like concealable sheet base material 101 into a single sheet are provided.
In this concealment type sheet manufacturing apparatus 20, the same components as those in the above-described pressure-sensitive adhesive label manufacturing apparatus 10 are denoted by the same reference numerals as those in FIG.

  The first cutting machine 26 and the second cutting machine 27 in the concealed sheet manufacturing apparatus 20 of the present embodiment are similar to the first cutting machine 16 of the pressure-sensitive adhesive label manufacturing apparatus 10 in that the cutting blade 26a is formed on the peripheral surface. , 27a.

  The feeder 11 feeds the web-shaped adhesive label base material 111a from its original fabric. Thereby, the processing by the muscle pusher 12, the coating film forming machine 13, the dryer 14, the second cutting machine 27, the folding machine 15 and the first cutting machine 26 is sequentially performed.

A method for manufacturing the concealment type sheet using the above-described manufacturing apparatus 20 will be described with reference to an example of manufacturing the concealment type sheet 100 shown in FIG. However, the manufacturing method of the concealment type sheet | seat of this invention is not limited to manufacture of the concealment type sheet | seat 100. FIG.
Here, the concealment sheet 100 includes an information entry part 120 provided with an information entry field 121 and an adhesive label 110 for concealing at least the information entry field 121 of the information entry part 120. Adhesive label 110 constituting the concealing seat 100 is similar to that shown in FIG. 2, the boundary B ₁ is being placed along the long side of the information entry section 121 near the concealed seat 100 .

In the manufacturing method of the concealment type sheet according to the present embodiment, first, the concealment type sheet base material 101 is continuously directed from the original fabric of the web-shaped concealment type sheet base material 101 toward the brace 12 by the feeder 21. Will be sent. As the concealable sheet substrate 101, the same material as the web-like adhesive label substrate 111a is used. In addition, in the web-shaped concealable sheet substrate 101, an information entry field 121 is printed in advance (see FIG. 7).
Next, the portion of the web-shaped concealable sheet substrate 101 that is used as the adhesive label substrate (that is, the portion that forms the pressure-sensitive adhesive layer) is pushed by the muscle pusher 12, and the crease L is formed. Turn on (see FIG. 7).

Next, a re-peeling / re-sticking adhesive is applied or printed on the portion of the web-like concealable sheet substrate 101 used as the adhesive label substrate by the coating film forming machine 13, A pressure-sensitive adhesive coating film 112a made of a re-peelable / re-sticking pressure-sensitive adhesive is continuously formed. The pressure-sensitive adhesive coating film 112a is heated and dried with a high-frequency electromagnetic wave by the dryer 14 to form pressure-sensitive adhesive layers 112b and 112c (see FIG. 8). Here, the pressure-sensitive adhesive layer 112c is located closer to the end in the width direction than the pressure-sensitive adhesive layer 112b.

Next, using the second cutting machine 27, the web-shaped concealable sheet base material 101 is cut into a shape in which the portion where the adhesive layer 112c is formed protrudes from the remaining portion (see FIG. 9). .
Thereafter, the folding machine 15 is used to fold and fold the portion of the concealable sheet substrate 101 where the adhesive layer 112c is formed at the crease L. At this time, the pressure-sensitive adhesive layer 112b and the pressure-sensitive adhesive layer 112c are prevented from overlapping each other (see FIGS. 10 and 11).
Then, using the first cutting machine 26, the concealable sheet substrate 101 is cut into a single sheet, and the concealment sheet 100 is obtained. In the obtained concealment type sheet 100, the part other than the adhesive label becomes the information entry part 120.

As the concealable sheet substrate 101 used in the manufacturing method, the same material as the adhesive label substrate 111 is used. It is preferable to print in advance on the concealable sheet substrate 101 the design and characters that are displayed when the concealment sheet is formed.
The re-peeling / re-sticking pressure-sensitive adhesive used in the method for producing a concealing sheet is the same as the re-peeling / re-sticking pressure-sensitive adhesive used in the above-described method for producing a pressure-sensitive adhesive label.

The concealment type sheet 100 obtained by the manufacturing method is used as follows, for example.
A destination of a company or the like that requires the personal information of the user is printed in advance on the side opposite to the side where the information entry field 121 is provided in the concealment type sheet 100. The user who has obtained the concealment type sheet 100 enters personal information or the like in the information entry field 121. Next, the pressure-sensitive adhesive label 110 is opened to expose the pressure-sensitive adhesive layers 112b and 112c. As a result, the personal information entered is concealed and mailed in that state. The company that has received the information peels off the adhesive label 110 from the information entry unit 120 and reads the entered personal information and the like.

  The concealment-type sheet manufacturing method described above can easily manufacture the pressure-sensitive adhesive label 110 as in the case of the pressure-sensitive adhesive label manufacturing method, can reduce the frequency of maintenance of the coating film forming machine 13, and burdens the operator. Can be reduced.

In addition, this invention is not limited to embodiment mentioned above.
For example, the coating film forming machine 13 of the pressure-sensitive adhesive label manufacturing apparatus and the concealment type sheet manufacturing apparatus of the present invention is a striped pattern parallel to the short side of the pressure-sensitive adhesive label base material and equidistantly. When the concealing part is folded back at the boundary with the first concealing part, the adhesive layer formed in the first concealing part and the adhesive layer formed in the second concealing part have a pattern that does not overlap each other. An adhesive coating film may be formed.
The coating film forming machine 13 of the pressure-sensitive adhesive label manufacturing apparatus and the concealable sheet manufacturing apparatus of the present invention forms a pressure-sensitive adhesive coating film only on one of the first concealing part and the second concealing part. It may be. In this case, a re-peelable / re-sticking adhesive may be applied over the entire surface.

  Moreover, the 2nd cutting machine of the manufacturing apparatus of the concealment-type sheet | seat of this invention may have a perforation blade which forms a perforation in the boundary of an adhesive label and an information entry part. When such a 2nd cutting machine is used, a perforation can be formed in the boundary of an adhesive label and an information entry part. Thereby, since an adhesive label can be cut off along a perforation, the restriction | limiting in the position which sticks an adhesive label is lose | eliminated.

It is a schematic diagram which shows one Embodiment of the manufacturing apparatus of the adhesive label of this invention. It is sectional drawing which shows an example of the adhesive label manufactured by the manufacturing method of the adhesive label of this invention. It is a top view which shows the state which pushed the web-shaped adhesive label base material by the pushing machine which comprises the manufacturing apparatus of the adhesive label shown in FIG. It is a top view which shows the state which formed the adhesive layer on the single side | surface of the web-shaped adhesive label base material with the coating-film formation machine which comprises the manufacturing apparatus of the adhesive label shown in FIG. It is a schematic diagram which shows the manufacturing apparatus of the concealment sheet | seat used by one Embodiment of the manufacturing method of the concealment sheet | seat of this invention. It is a top view which shows an example of the concealment type | mold sheet manufactured with the manufacturing method of the concealment type | formula sheet | seat of this invention. It is a figure explaining one Embodiment of the manufacturing method of the concealment type sheet | seat of this invention, Comprising: It is a top view which shows the base material for concealment sheet | seats pushed straight. It is a figure explaining one Embodiment of the manufacturing method of the concealment sheet | seat of this invention, Comprising: It is a top view which shows the state in which the adhesive layer was formed in the base material for concealment sheets. It is a figure explaining one Embodiment of the manufacturing method of the concealment-type sheet | seat of this invention, Comprising: A part of concealment-type sheet | seat base material protrudes from the remainder by the 2nd cutting machine for the concealment-type sheet | seat base material. It is a top view which shows the state cut | judged in. It is a figure explaining one Embodiment of the manufacturing method of the concealment sheet | seat of this invention, Comprising: It is a top view which shows the state which affixed the part which protruded the base material for concealment sheets to the remainder. It is II sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Adhesive label manufacturing apparatus 11 Feeder 12 Muscle pusher 13 Coating film forming machine 14 Dryer 15 Folding machines 16 and 26 First cutting machine 20 Concealed sheet manufacturing apparatus 21 Feeder 27 Second cutting machine 100 concealment type sheet 101 concealment type sheet base material 110 adhesive label 111 adhesive label base material 111a web-like adhesive label base material 111b first concealing part 111c second concealing part 112a adhesive coating film 112b, 112c adhesive Agent layer 120 Information entry section 121 Information entry field

Claims (7)

A pressure-sensitive adhesive coating film made of a re-peelable / re-sticking pressure-sensitive adhesive containing adhesive fine particles and / or non-adhesive fine particles, a binder, a tackifier, and an aqueous solvent is formed on at least one surface of the adhesive label substrate. A film forming machine;
The pressure-sensitive adhesive coating film is heat-dried by high-frequency electromagnetic waves, and a pressure-sensitive adhesive layer in which a part of the pressure-sensitive adhesive fine particles and / or non-sticky fine particles protrudes from the binder and tackifier film to form irregularities on the surface. An apparatus for producing a pressure-sensitive adhesive label, comprising: The apparatus for producing an adhesive label according to claim 1, wherein the coating film forming machine is a printing machine. Furthermore, it has a folding machine installed after the dryer,
The coating film forming machine comprises a pressure-sensitive adhesive made of a re-peelable / re-stickable pressure-sensitive adhesive in a region divided into a first concealing part and a region divided into a second concealing part on one side of the adhesive label base material. The film is formed in a pattern,
The pattern is a pattern in which the adhesive coatings of the first concealing part and the second concealing part do not overlap when the adhesive label substrate is folded back at the boundary between the first concealing part and the second concealing part. Yes,
The said folding machine is comprised so that the base material for adhesive labels may be folded in the boundary of a said 1st concealing part and a 2nd concealing part, and the opposing surfaces may be stuck by the said adhesive layer. The manufacturing apparatus of the adhesive label of 1 or 2 . A pressure-sensitive adhesive coating film made of a re-peelable / re-sticking pressure-sensitive adhesive containing adhesive fine particles and / or non-adhesive fine particles, a binder, a tackifier, and an aqueous solvent is formed on at least one surface of the adhesive label substrate. Process,
The pressure-sensitive adhesive coating film is heat-dried by high-frequency electromagnetic waves, and a pressure-sensitive adhesive layer in which a part of the pressure-sensitive adhesive fine particles and / or non-sticky fine particles protrudes from the binder and tackifier film to form irregularities on the surface. A process for forming a pressure-sensitive adhesive label. The method for producing a pressure-sensitive adhesive label according to claim 4 , wherein in the step of forming the pressure-sensitive adhesive coating film, a re-peelable / re-stickable pressure-sensitive adhesive is printed. The step of forming the pressure-sensitive adhesive coating film includes re-peeling / re-sticking pressure-sensitive adhesive into a region divided into the first concealing portion and a region divided into the second concealing portion on one side of the adhesive label base material. Is a step of forming a pressure-sensitive adhesive coating film comprising a pattern,
The pattern is a pattern in which the adhesive coatings of the first concealing part and the second concealing part do not overlap when the adhesive label substrate is folded back at the boundary between the first concealing part and the second concealing part. Yes,
After the step of forming the pressure-sensitive adhesive layer, the step of folding the pressure-sensitive adhesive label base material at the boundary between the first concealing portion and the second concealing portion, and sticking the opposing surfaces with the pressure-sensitive adhesive layer. The manufacturing method of the adhesive label of Claim 4 or 5 which has. A concealable sheet comprising an adhesive layer on a concealable sheet base material divided into an information entry part and a concealment part, and comprising an information entry part and an adhesive label for concealing at least a part of the information entry part A manufacturing method of a concealment type sheet to be manufactured,
The concealment type | mold characterized by using the concealment part of the base material for concealment-type sheets as a base material for adhesive labels, and forming an adhesive label with the manufacturing method of the adhesive label as described in any one of Claims 4-6. Sheet manufacturing method.

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